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Table 2 Perfusion parameter of controls (n = 79) and DM patients (n = 120) with different BMI

From: The additive effects of obesity on myocardial microcirculation in diabetic individuals: a cardiac magnetic resonance first-pass perfusion study

 

Controls (n = 79)

DM patients (n = 120)

Normal-weight (n = 33)

Overweight (n = 27)

Obese (n = 19)

P valueå

Normal-weight (n = 51)

Overweight (n = 29)

Obese (n = 40)

P valueß

Basal

 Upslope

2.26 ± 0.84

1.82 ± 0.55

1.35 ± 0.42*

0.000

1.85 ± 0.53

1.40 ± 0.34*

1.10 ± 0.35* §

0.000

 TTM (sec)

25.22 ± 10.85

32.17 ± 17.42

33.17 ± 14.12

0.084

35.36 ± 17.05

35.75 ± 18.83

35.36 ± 15.52

0.929

 MaxSI

17.24 ± 6.54

16.27 ± 4.14

13.24 ± 3.07*

0.028

16.34 ± 5.18

11.33 ± 3.76*

9.33 ± 3.01*

0.000

 MaxSI (- baseline)

15.93 ± 4.26

13.29 ± 4.61

10.62 ± 2.65*

0.000

12.63 ± 4.40

8.06 ± 2.58*

7.31 ± 2.52*

0.000

 SI (baseline)

3.72 ± 1.43

3.35 ± 0.95

2.63 ± 0.80*

0.006

3.13 ± 1.42

2.29 ± 0.87*

2.20 ± 0.95*

0.000

Mid-ventricular

 Upslope

2.93 ± 1.03

2.31 ± 0.72*

1.80 ± 0.60*

0.000

2.37 ± 0.70

1.99 ± 0.54*

1.37 ± 0.41* §

0.000

 TTM (sec)

27.31 ± 13.86

31.68 ± 16.61

33.25 ± 13.83

0.313

34.19 ± 16.14

35.93 ± 20.13

34.26 ± 12.55

0.884

 MaxSI

21.78 ± 7.83

20.59 ± 5.32

16.58 ± 3.96*

0.018

21.29 ± 6.54

15.01 ± 4.14*

12.22 ± 3.91*

0.000

 MaxSI (- baseline)

19.63 ± 5.25

16.74 ± 5.41

13.14 ± 3.42*

0.000

16.38 ± 5.39

10.83 ± 3.48*

9.49 ± 3.33*

0.000

 SI (Baseline)

4.83 ± 1.60

4.36 ± 1.51

3.39 ± 0.96*

0.004

4.22 ± 1.73

3.08 ± 1.00*

2.86 ± 1.06*

0.000

Apex

 Upslope

3.69 ± 1.19

2.95 ± 0.85*

2.19 ± 0.62*

0.000

3.03 ± 0.91

2.44 ± 0.70*

1.80 ± 0.57* §

0.000

 TTM (sec)

27.81 ± 13.87

32.43 ± 16.55

35.01 ± 14.62

0.221

34.20 ± 15.75

36.74 ± 19.94

35.26 ± 13.31

0.794

 MaxSI

26.90 ± 10.28

26.67 ± 6.84

20.76 ± 4.42

0.021

24.42 ± 8.50

19.94 ± 5.17*

16.19 ± 4.91*

0.000

 MaxSI (- baseline)

24.32 ± 7.72

21.37 ± 5.41

16.50 ± 4.03*

0.000

21.52 ± 7.40

13.82 ± 4.21*

12.68 ± 4.10*

0.000

 SI (baseline)

5.80 ± 2.06

5.27 ± 2.05

4.36 ± 1.47

0.041

5.57 ± 2.16

4.15 ± 1.33*

3.70 ± 1.38*

0.000

  1. Values are means ± standard deviations
  2. P valueå, P valueß: P values refer to the differences among three subgroups across different BMI scales within controls (å) or DM patients (ß) based on Fisher’s exact test or one-way analysis of variance followed by Bonferroni’s post hoc test; *P < 0.017 versus Normal weight group; §P < 0.017 versus overweight group